drivers/clocksource/Kconfig

   1 menu "Clock Source drivers"
   2
   3 config CLKSRC_OF
   4         bool
   5
   6 config CLKSRC_I8253
   7         bool
   8
   9 config CLKEVT_I8253
  10         bool
  11
  12 config I8253_LOCK
  13         bool
  14
  15 config CLKBLD_I8253
  16         def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
  17
  18 config CLKSRC_MMIO
  19         bool
  20
  21 config DIGICOLOR_TIMER
  22         bool
  23
  24 config DW_APB_TIMER
  25         bool
  26
  27 config DW_APB_TIMER_OF
  28         bool
  29         select DW_APB_TIMER
  30         select CLKSRC_OF
  31
  32 config ROCKCHIP_TIMER
  33         bool
  34         select CLKSRC_OF
  35
  36 config ARMADA_370_XP_TIMER
  37         bool
  38         select CLKSRC_OF
  39
  40 config MESON6_TIMER
  41         bool
  42         select CLKSRC_MMIO
  43
  44 config ORION_TIMER
  45         select CLKSRC_OF
  46         select CLKSRC_MMIO
  47         bool
  48
  49 config SUN4I_TIMER
  50         select CLKSRC_MMIO
  51         bool
  52
  53 config SUN5I_HSTIMER
  54         select CLKSRC_MMIO
  55         bool
  56
  57 config TEGRA_TIMER
  58         bool
  59
  60 config VT8500_TIMER
  61         bool
  62
  63 config CADENCE_TTC_TIMER
  64         bool
  65
  66 config ASM9260_TIMER
  67         bool
  68         select CLKSRC_MMIO
  69         select CLKSRC_OF
  70
  71 config CLKSRC_NOMADIK_MTU
  72         bool
  73         depends on (ARCH_NOMADIK || ARCH_U8500)
  74         select CLKSRC_MMIO
  75         help
  76           Support for Multi Timer Unit. MTU provides access
  77           to multiple interrupt generating programmable
  78           32-bit free running decrementing counters.
  79
  80 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
  81         bool
  82         depends on CLKSRC_NOMADIK_MTU
  83         help
  84           Use the Multi Timer Unit as the sched_clock.
  85
  86 config CLKSRC_DBX500_PRCMU
  87         bool "Clocksource PRCMU Timer"
  88         depends on UX500_SOC_DB8500
  89         default y
  90         help
  91           Use the always on PRCMU Timer as clocksource
  92
  93 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
  94         bool "Clocksource PRCMU Timer sched_clock"
  95         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
  96         default y
  97         help
  98           Use the always on PRCMU Timer as sched_clock
  99
 100 config CLKSRC_EFM32
 101         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 102         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 103         select CLKSRC_MMIO
 104         default ARCH_EFM32
 105         help
 106           Support to use the timers of EFM32 SoCs as clock source and clock
 107           event device.
 108
 109 config CLKSRC_LPC32XX
 110         bool
 111         select CLKSRC_MMIO
 112         select CLKSRC_OF
 113
 114 config CLKSRC_PISTACHIO
 115         bool
 116         select CLKSRC_OF
 117
 118 config CLKSRC_STM32
 119         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 120         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 121         select CLKSRC_MMIO
 122
 123 config ARM_ARCH_TIMER
 124         bool
 125         select CLKSRC_OF if OF
 126
 127 config ARM_ARCH_TIMER_EVTSTREAM
 128         bool "Support for ARM architected timer event stream generation"
 129         default y if ARM_ARCH_TIMER
 130         depends on ARM_ARCH_TIMER
 131         help
 132           This option enables support for event stream generation based on
 133           the ARM architected timer. It is used for waking up CPUs executing
 134           the wfe instruction at a frequency represented as a power-of-2
 135           divisor of the clock rate.
 136           The main use of the event stream is wfe-based timeouts of userspace
 137           locking implementations. It might also be useful for imposing timeout
 138           on wfe to safeguard against any programming errors in case an expected
 139           event is not generated.
 140           This must be disabled for hardware validation purposes to detect any
 141           hardware anomalies of missing events.
 142
 143 config ARM_GLOBAL_TIMER
 144         bool
 145         select CLKSRC_OF if OF
 146         help
 147           This options enables support for the ARM global timer unit
 148
 149 config ARM_TIMER_SP804
 150         bool "Support for Dual Timer SP804 module"
 151         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 152         select CLKSRC_MMIO
 153         select CLKSRC_OF if OF
 154
 155 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 156         bool
 157         depends on ARM_GLOBAL_TIMER
 158         default y
 159         help
 160          Use ARM global timer clock source as sched_clock
 161
 162 config ARMV7M_SYSTICK
 163         bool
 164         select CLKSRC_OF if OF
 165         select CLKSRC_MMIO
 166         help
 167           This options enables support for the ARMv7M system timer unit
 168
 169 config ATMEL_PIT
 170         select CLKSRC_OF if OF
 171         def_bool SOC_AT91SAM9 || SOC_SAMA5
 172
 173 config ATMEL_ST
 174         bool
 175         select CLKSRC_OF
 176         select MFD_SYSCON
 177
 178 config CLKSRC_METAG_GENERIC
 179         def_bool y if METAG
 180         help
 181           This option enables support for the Meta per-thread timers.
 182
 183 config CLKSRC_EXYNOS_MCT
 184         def_bool y if ARCH_EXYNOS
 185         depends on !ARM64
 186         help
 187           Support for Multi Core Timer controller on Exynos SoCs.
 188
 189 config CLKSRC_SAMSUNG_PWM
 190         bool
 191         help
 192           This is a new clocksource driver for the PWM timer found in
 193           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 194           for all devicetree enabled platforms. This driver will be
 195           needed only on systems that do not have the Exynos MCT available.
 196
 197 config FSL_FTM_TIMER
 198         bool
 199         help
 200           Support for Freescale FlexTimer Module (FTM) timer.
 201
 202 config VF_PIT_TIMER
 203         bool
 204         help
 205           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 206
 207 config SYS_SUPPORTS_SH_CMT
 208         bool
 209
 210 config MTK_TIMER
 211         select CLKSRC_OF
 212         select CLKSRC_MMIO
 213         bool
 214
 215 config SYS_SUPPORTS_SH_MTU2
 216         bool
 217
 218 config SYS_SUPPORTS_SH_TMU
 219         bool
 220
 221 config SYS_SUPPORTS_EM_STI
 222         bool
 223
 224 config SH_TIMER_CMT
 225         bool "Renesas CMT timer driver" if COMPILE_TEST
 226         depends on GENERIC_CLOCKEVENTS
 227         depends on HAS_IOMEM
 228         default SYS_SUPPORTS_SH_CMT
 229         help
 230           This enables build of a clocksource and clockevent driver for
 231           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 232           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 233
 234 config SH_TIMER_MTU2
 235         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 236         depends on GENERIC_CLOCKEVENTS
 237         depends on HAS_IOMEM
 238         default SYS_SUPPORTS_SH_MTU2
 239         help
 240           This enables build of a clockevent driver for the Multi-Function
 241           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 242           This hardware comes with 16 bit-timer registers.
 243
 244 config SH_TIMER_TMU
 245         bool "Renesas TMU timer driver" if COMPILE_TEST
 246         depends on GENERIC_CLOCKEVENTS
 247         depends on HAS_IOMEM
 248         default SYS_SUPPORTS_SH_TMU
 249         help
 250           This enables build of a clocksource and clockevent driver for
 251           the 32-bit Timer Unit (TMU) hardware available on a wide range
 252           SoCs from Renesas.
 253
 254 config EM_TIMER_STI
 255         bool "Renesas STI timer driver" if COMPILE_TEST
 256         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 257         default SYS_SUPPORTS_EM_STI
 258         help
 259           This enables build of a clocksource and clockevent driver for
 260           the 48-bit System Timer (STI) hardware available on a SoCs
 261           such as EMEV2 from former NEC Electronics.
 262
 263 config CLKSRC_QCOM
 264         bool
 265
 266 config CLKSRC_VERSATILE
 267         bool "ARM Versatile (Express) reference platforms clock source"
 268         depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 269         select CLKSRC_OF
 270         default y if MFD_VEXPRESS_SYSREG
 271         help
 272           This option enables clock source based on free running
 273           counter available in the "System Registers" block of
 274           ARM Versatile, RealView and Versatile Express reference
 275           platforms.
 276
 277 config CLKSRC_MIPS_GIC
 278         bool
 279         depends on MIPS_GIC
 280         select CLKSRC_OF
 281
 282 config CLKSRC_PXA
 283         def_bool y if ARCH_PXA || ARCH_SA1100
 284         select CLKSRC_OF if OF
 285         help
 286           This enables OST0 support available on PXA and SA-11x0
 287           platforms.
 288
 289 config H8300_TMR16
 290         bool
 291
 292 config H8300_TPU
 293         bool
 294
 295 config CLKSRC_IMX_GPT
 296         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 297         depends on ARM && CLKDEV_LOOKUP
 298         select CLKSRC_MMIO
 299
 300 config CLKSRC_ST_LPC
 301         bool
 302         depends on ARCH_STI
 303         select CLKSRC_OF if OF
 304         help
 305           Enable this option to use the Low Power controller timer
 306           as clocksource.
 307
 308 endmenu